Sasha, often called 'Splash' by her friends, is a sweet twelve-year-old scuba diver. She is always wearing a long-sleeved full-body wetsuit, a diving mask, a pair of rubber gloves, a swimming cap, a dive hood, a pair of flippers, a scuba breather and an air tank that holds infinite air. She loves to scuba dive with her friends Marina, Rachel, Olivia, Izzy and Nora. She is a student at an all-girls scuba diving academy and she, Marina, Olivia, Rachel, Izzy and Nora are in the same dive group and their instructor is named Mrs. Puddles.